?- Elektronische Bauelemente GmbH (EBG)
- Ever Ohms Technology Co. Ltd.
- Panasonic Corporation
- Ralec Electronics Corporation
- Rohm Co. Ltd.
- Samsung Electro-Mechanics
- Ta-I Technology Co. Ltd.
- Tateyama Kagaku Industry Co. Ltd.
- Uniohm Corporation
- Walsin Technology Corporation